(2E)-1-Phenyl-2-[1-(2-phenyl­prop-2-en-1-yl)pyrrolidin-2-yl­idene]ethanone

The title compound, C₂₁H₂₁NO, is a vinyl­ogous amide (enaminone) produced by reaction of 1-(2-phenyl­prop-2-en-1-yl)pyrrolidine-2-thione with phenacyl bromide. In the mol­ecule, the phenyl rings are twisted from the mean plane of the pyrrolidine ring by 11.2 (1) and 67.3 (1)°. In the crystal, weak C—H...O hydrogen bonds link the mol­ecules related by translation along the b axis into chains.